package k;


//


import org.apache.commons.httpclient.Cookie;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.cookie.CookiePolicy;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Created by 刘宇飞 on 2016/11/2.
 * 为了模拟页面登录特意开发
 */
public class HttpClientLogin {

    public static void gotoLogin( HttpServletRequest request,HttpServletResponse response) {
        // 登陆 Url
        String loginUrl = "http://www.woappstore.com/uaa/login";
        // 需登陆后访问的 Url
        String dataUrl = "http://www.woappstore.com/agri-portal-web/index";

        HttpClient httpClient = new HttpClient();

        // 模拟登陆，按实际服务器端要求选用 Post 或 Get 请求方式
        PostMethod postMethod = new PostMethod(loginUrl);

        // 设置登陆时要求的信息，用户名和密码
        NameValuePair[] data = { new NameValuePair("username", "test1"),
                new NameValuePair("password", "adminadmin") };
        postMethod.setRequestBody(data);
        try {
            // 设置 HttpClient 接收 Cookie,用与浏览器一样的策略
            httpClient.getParams().setCookiePolicy(
                    CookiePolicy.BROWSER_COMPATIBILITY);
            httpClient.executeMethod(postMethod);
            // 获得登陆后的 Cookie
            Cookie[] cookies = httpClient.getState().getCookies();
            StringBuffer tmpcookies = new StringBuffer();
            for (Cookie c : cookies) {
                tmpcookies.append(c.toString() + ";");
            }
            // 进行登陆后的操作1581,1602,1603,1610,1609,1608,1607,1606,1605,1620,1619,1617,1616,1622,1626,1642,1648,1647,1657
            GetMethod getMethod = new GetMethod(dataUrl);
            // 每次访问需授权的网址时需带上前面的 cookie 作为通行证
            getMethod.setRequestHeader("cookie", tmpcookies.toString());
            // 你还可以通过 PostMethod/GetMethod 设置更多的请求后数据
            // 例如，referer 从哪里来的，UA 像搜索引擎都会表名自己是谁，无良搜索引擎除外
//            postMethod.setRequestHeader("Referer", "http://www.cc");
//            postMethod.setRequestHeader("User-Agent", "www Spot");
            httpClient.executeMethod(getMethod);
            // 打印出返回数据，检验一下是否成功
            String text = getMethod.getResponseBodyAsString();
            System.out.println(text);
            request.getRequestDispatcher(dataUrl).forward(request,response);

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
